可以简化此代码以向 std::map 添加结构吗？

Question

我有这样的结构：

struct S_SWAP_TALK
{
    S_TALK_INFO* pHomeTalk{};
    S_AWAY_TALK* pAwayTalk{};
};

而且，我有这个

std::map

：

std::map<UINT, S_SWAP_TALK> m_mapSwapTalks;

目前，我已经像这样填充了地图：

S_SWAP_TALK sSwapTalk{};
sSwapTalk.pAwayTalk = &sAwayTalk;
m_mapSwapTalks[menuItemId] = sSwapTalk;

或

S_SWAP_TALK sSwapTalk{};
sSwapTalk.pHomeTalk = &sPTI;
m_mapSwapTalks[menuItemId] = sSwapTalk;

是否可以简化此代码，以便我不需要将

S_SWAP_TALK

结构声明为变量？例如：

m_mapSwapTalks[menuItemId] = ...;

Answer 1

使用 C++20 你可以写：

m_mapSwapTalks[menuItemId] = { .pAwayTalk = &sAwayTalk };
m_mapSwapTalks[menuItemId] = { .pHomeTalk = &sPTI };